ChopperBill
Well-known member
Seems to still be lots of posts on the unfulfillable or short gallonage water tanks of about every model. This is a sloppy sketch of how I fixed mine even though it has be discussed before. In stock form if you are not perfectly level or tilted to the pump side you have virtually no chance in filling the tank to capacity. I upped those odds buy "shimming up" the opposite side of the pump intake as illustrated. Filling the tank requires all vent shut offs open. When you fill the tank the V3 vent, down hill side, will start to over flow first. Shut it off when it does. Then the V2 and the V1 in that order. Now you have a FULL tank! Probably more water than what the specs say. Dont fear as I have installed the center tank support to keep it in place. Keep all vents closed while you travel to keep water from siphoning out. The tank fill has its own vent, not shown in the illistration, for when you start using the water at your location. I think some of the newer units have run all three vents into one so you will have to deal with that when you have the tank uncovered and are "shimming" it up. It is not that hard of a project. Be aware that the 1/3 sensor is almost at the same level as the pump intake, so you will probably still show 1/3 tank when it is running out of water. If you leave the tank drain open while heading home the last of the water, very little, will drain and then you will show an empty tank.
Believe me if you are a boon docker this system works! Conserve on long trips or water at will on short stays.
Believe me if you are a boon docker this system works! Conserve on long trips or water at will on short stays.